Development of a pyrolysis model for oriented strand board: Part II—Thermal transport parameterization and bench-scale validation

Oriented strand board is a widely used construction material responsible for substantial portion of the fire load many buildings. To accurately model oriented response, kinetics and thermodynamics its thermal decomposition combustion were carefully characterized using milligram-scale testing in part I this study. In current work, Controlled Atmosphere Pyrolysis Apparatus II tests performed on representative gram-sized samples at range radiant heat fluxes. An automated inverse analysis sample temperature data obtained these was employed to determine conductivities undecomposed condensed-phase products decomposition. A complete pyrolysis formulated predict mass loss rates measured experiments. These rate profiles predicted well with exception second peak observed 65 kW m −2 flux, which underpredicted. further validate model, cone calorimeter 25 50 flux. The results tests, including both release profiles, reasonably by model.